Thesis on biogas plant

Hemp rope was used in the age of sailing ships , though the rope had to be protected by tarring , since hemp rope has a propensity for breaking from rot , as the capillary effect of the rope-woven fibers tended to hold liquid at the interior, while seeming dry from the outside. [61] Tarring was a labor-intensive process, and earned sailors the nickname " Jack Tar ". Hemp rope was phased out when Manila, which does not require tarring, became widely available. Manila is sometimes referred to as Manila hemp , but is not related to hemp; it is abacá , a species of banana .

Thesis on biogas plant

thesis on biogas plant

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